arnoldc wrote:Tama si john on the formula, it's simple Ohm's Law.
KD, it may not be a mistake. Maybe tama ang Dynaco, but it's the "interpretation" that is in question here.
arnoldc wrote:Teka KD, Iceman, di ba nag attend kayo ng Tubes 101 class? How could you have missed that?
arnoldc wrote:ice, tama ka dyan! ako alam ko pag sintunado yung singer/band, pero sintunado pa din ako
zetroce wrote:arnoldc wrote:ice, tama ka dyan! ako alam ko pag sintunado yung singer/band, pero sintunado pa din ako
Kumakanta ka ba sa K_V. Ako kasi, pinababayaan ko na lang yung katabi ko ang kumanta, minamasahe ko na lang siya para ganahan...
JojoD wrote:also, 50mA is not purely plate current, you must subtract the screen current to accurately get the plate current. this would roughly be around 42mA-45mA per tube.
iceman90a wrote:zetroce wrote:arnoldc wrote:ice, tama ka dyan! ako alam ko pag sintunado yung singer/band, pero sintunado pa din ako
Kumakanta ka ba sa K_V. Ako kasi, pinababayaan ko na lang yung katabi ko ang kumanta, minamasahe ko na lang siya para ganahan...
sarap ka pala kasama sa kantahan - libre masahe!
aaayyy type!
arnoldc wrote:jojo, the screen current is IN ADDITION to the plate current, not taken away from the plate current.
even if the EL34 can take up to 100mA, just think what is the rating of that power transformer? did you notice how hot the power transformer is? yes, bias it high, and draw more current = generate more heat and shorten life of your power transformer. it will also affect the DC current rating of the output transformer, can it take more than 100mA??
vintage_dog wrote:JojoD wrote:also, 50mA is not purely plate current, you must subtract the screen current to accurately get the plate current. this would roughly be around 42mA-45mA per tube.
am catching up...now how does one measure that (screen current)?
thanks for the education guys...keep 'em coming
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